India, June 17 -- A video shared by a group of American tourists has sparked outrage online after it showed a man allegedly filming them from his hotel room window while they were sunbathing in bikinis at a hotel in Delhi.

Rory and Sage, sisters who are travelling the world with their parents, posted the unsettling footage on Instagram. In the clip, the camera zooms in on a man holding up his phone and seemingly recording the two women from his window as they lie in the sun. The sisters appear visibly uncomfortable, and their mother begins filming the man in return.

"Someone is filming us and they are not being discreet," she says in the video, before calling her husband over and informing him that all three of them are being recorded....